Multiple myeloma is staged by estimating the myeloma tumor cell mass on the basis of the amount of monoclonal (or myeloma) protein (M protein) in the serum and/or urine, along with various clinical parameters, such as hemoglobin and serum calcium concentrations, the number of lytic bone lesions, and the presence or absence of renal failure.
At present, daylight saving time in the United States. 1  begins at 2:00 a.m. on the second Sunday of March and. 2  ends at 2:00 a.m. on the first Sunday of November.
November 2, 2015; 2:21 AM ET. Daylight saving time ended at 2:00 a.m. Sunday, Nov. 1, 2015, and clocks were set back an hour. While daylight saving time was started in the United States primarily for the sake of conserving energy, some argue that is not the case anymore. Daylight saving time was adopted by the U.S. in 1918 primarily for the sake of conserving energy.